package user;
import book.BookList;
import operations.IOPeration;
public abstract class User {
    protected String name;
    protected IOPeration[] ioPerations;//只是定义数组,没有初始化,内存没分配
    public User(String name) {
        this.name = name;
    }
    public abstract int menu();
    public void doOperation(int choice, BookList bookList) {
        ioPerations[choice].work(bookList);
    }
}